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  • Title: The cemented acetabular component of a total hip replacement. All polyethylene versus metal backing.
    Author: Ritter MA.
    Journal: Clin Orthop Relat Res; 1995 Feb; (311):69-75. PubMed ID: 7634593.
    Abstract:
    The increasing use of a cementless acetabular component with a total hip replacement requires the need for metal backing, but metal backing with cement in the author's use has been less than optimal. The intention, therefore, was to evaluate all cemented acetabular components, with and without metal backing, used by the author, to offer a standard by which other acetabular components can be compared. From 1969 to 1983, 238 Charnley, 141 Mueller, 555 T-28, 100 Miami Orthopaedic Surgical Clinic total hip replacements with cemented all-polyethylene acetabula, and 134 Miami Orthopaedic Surgical Clinic total hip replacements with a cemented metal-backed acetabula were performed and followed from 1 to 22 years. The cemented acetabular component failure rates for the Charnley, T-28, and all-polyethylene Miami Orthopaedic Surgical Clinic were 14%, 10%, and 9%, respectively. There was a 20% failure rate in the Mueller and metal-backed Miami Orthopaedic Surgical Clinic acetabular components. The Charnley (p < 0.0001), T-28 (p < 0.0001), all-polyethylene Miami Orthopaedic Surgical Clinic (p < 0.0001), and Mueller (p < 0.012) total hip replacements demonstrated statistically improved survival rates as compared with the metal-backed Miami Orthopaedic Surgical Clinic acetabular components. The Charnley (p < 0.0001) and T-28 (p < 0.0003) sockets survived statistically better than the Mueller sockets.(ABSTRACT TRUNCATED AT 250 WORDS)
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